BUTTERFLY NETWORK INC BFLY
COM CL A · Common Stock · CUSIP 124155102 · ISIN US1241551027
- SectorHealth care
- IndustryX-Ray Apparatus & Tubes & Related Irradiation Apparatus
- HeadquartersBurlington, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($270 this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $1.93. Options: 7 managers hold calls ($2.8m notional), 6 hold puts ($1.2m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 199 |
| Q4 2022 | 198 |
| Q1 2023 | 181 |
| Q2 2023 | 185 |
| Q3 2023 | 186 |
| Q4 2023 | 170 |
| Q1 2024 | 171 |
| Q2 2024 | 169 |
| Q3 2024 | 150 |
| Q4 2024 | 174 |
| Q1 2025 | 208 |
| Q2 2025 | 190 |
| Q3 2025 | 176 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 66 | 91 |
| Q1 2024 | 56 | 94 |
| Q2 2024 | 63 | 86 |
| Q3 2024 | 50 | 85 |
| Q4 2024 | 87 | 58 |
| Q1 2025 | 125 | 61 |
| Q2 2025 | 108 | 89 |
| Q3 2025 | 86 | 91 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $5.3m | $1.6m | 0.30 |
| Q1 2025 | $2.0m | $1.5m | 0.71 |
| Q2 2025 | $1.2m | $985.6k | 0.80 |
| Q3 2025 | $2.8m | $1.2m | 0.44 |
Biggest buyers
| UBS Group AG | Added | +1.8m |
| STATE STREET CORP | Added | +831.4k |
| PERKINS CAPITAL MANAGEMENT INC | Added | +629.0k |
| Parkman Healthcare Partners LLC | New | +602.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +591.2k |
| VANGUARD GROUP INC | Added | +453.3k |
| Schonfeld Strategic Advisors LLC | New | +444.1k |
| AWM Investment Company, Inc. | New | +400.0k |
| Diametric Capital, LP | New | +395.4k |
| DEUTSCHE BANK AG\ | Added | +319.3k |
Biggest sellers
| Capital World Investors | Sold out | -8.5m |
| First Light Asset Management, LLC | Reduced | -4.3m |
| ACADIAN ASSET MANAGEMENT LLC | Sold out | -2.3m |
| Ophir Asset Management Pty Ltd | Sold out | -1.9m |
| MORGAN STANLEY | Reduced | -1.4m |
| TUDOR INVESTMENT CORP ET AL | Sold out | -1.1m |
| BANK OF AMERICA CORP /DE/ | Reduced | -803.4k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -749.0k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -659.7k |
| Qube Research & Technologies Ltd | Sold out | -557.2k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $1.0m532.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $805.2k417.2k shares |
| IMC-Chicago, LLC | New | $379.2k196.5k shares |
| SIMPLEX TRADING, LLC | Added | $220.0k114.4k shares |
| WOLVERINE TRADING, LLC | New | $176.8k90.2k shares |
| CITADEL ADVISORS LLC | Reduced | $120.2k62.3k shares |
| JANE STREET GROUP, LLC | New | $31.7k16.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $430.8k223.2k shares |
| CITADEL ADVISORS LLC | Reduced | $310.9k161.1k shares |
| IMC-Chicago, LLC | New | $217.1k112.5k shares |
| GROUP ONE TRADING LLC | Added | $135.7k70.3k shares |
| WOLVERINE TRADING, LLC | New | $75.1k38.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $38.0k20.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
ROTHBERG JONATHAN M
13D · may seek influence
no change · filed 2026-08-17
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented by adding the following: In connection with estate planning, Dr. Rothberg, acting on his own and on behalf of 4C Holdings I, LLC, 4C Holdings II, LLC, 4C Holdings III, LLC, 4C Holdings IV, LLC, and Dr. Bonnie Rothberg, Dr. Rothberg's spouse, entered into a trading plan pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended (the "Plan"), a copy of which is attached hereto as Exhibit 6. Pursuant to the Plan, sales of up to 363,348 shares of Class A common stock and 8,049,929 shares of Class B common stock may be effected during the plan sales period beginning following the cooling-off period contained in Rule 10b5-1(c) and ending on November 12, 2027 in accordance with the terms and conditions of the Plan. … Full filing |
100.0% |
| FMR LLC 13G · institution new · filed 2026-08-07 | 11.8% |
| BlackRock, Inc. 13G · institution +1.5 pts · filed 2026-07-27 | 7.8% |
GLENVIEW CAPITAL MANAGEMENT, LLC
13D · may seek influence
-2.3 pts · filed 2026-08-17
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: On June 22, 2026, Mr. Robbins was granted 25,447 shares of unvested restricted stock units, each representing the right to receive one share of Common Stock upon vesting, which vest in full on the date of the Issuer's 2027 Annual Stockholders Meeting, subject to Mr. Robbins' continued service on the Issuer's board of directors on such date. Full filing |
6.2% |
| Hood River Capital Management LLC 13G · institution new · filed 2026-08-14 | 5.6% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26), Fosun Industrial Co., Ltd (4.7%, 2026-02-05)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 1 | $12.2k | — |
| Q1 2024 | 0 | — | 2 | $301.2k | — |
| Q2 2024 | 0 | — | 2 | $72.3k | — |
| Q3 2024 | 2 | $2.0m | 2 | $142.3k | — |
| Q4 2024 | 0 | — | 3 | $650.9k | — |
| Q1 2025 | 0 | — | 1 | $9.0k | — |
| Q2 2025 | 0 | — | 3 | $929.2k | — |
| Q3 2025 | 1 | $82.0k | 3 | $241.7k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-04 | Cashman Steve Chief Business Officer | Sold | $213.9k142.6k shares |
| 2025-09-04 | Carlson Megan Interim CFO | Sold | $20.7k13.8k shares |
| 2025-09-03 | Caezza Nicholas Deputy General Counsel | Sold | $2.6k1.7k shares |
| 2025-08-25 | Cashman Steve Chief Business Officer | Bought | $82.0k50.0k shares |
| 2025-08-04 | Caezza Nicholas Deputy General Counsel | Sold | $4.5k3.1k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 13.8m $26.7m | Reduced -195.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 11.0m $21.3m | Added +453.3k |
| Fosun International Ltd 7.73% of their portfolio | 10.7m $20.7m | Unchanged |
| GLENVIEW CAPITAL MANAGEMENT, LLC 0.47% of their portfolio | 10.0m $19.2m | Unchanged |
| ARK Investment Management LLC 0.07% of their portfolio | 6.1m $11.9m | Reduced -270.9k |
| STATE STREET CORP 0.00% of their portfolio | 6.0m $11.5m | Added +831.4k |
| Hood River Capital Management LLC 0.12% of their portfolio | 5.4m $10.4m | Added +278.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 4.6m $8.9m | Added +264.5k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 2.7m $5.2m | Reduced -17.3k |
| UBS Group AG 0.00% of their portfolio | 2.2m $4.2m | Added +1.8m |
| MORGAN STANLEY 0.00% of their portfolio | 1.9m $3.6m | Reduced -1.4m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.6m $3.2m | Added +112.1k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 1.5m $2.9m | Reduced -659.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.5m $2.9m | Reduced -34.2k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 1.1m $2.2m | Added +50.4k |
| First Light Asset Management, LLC 0.21% of their portfolio | 1.1m $2.2m | Reduced -4.3m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 1.0m $2.0m | Added +591.2k |
| PERKINS CAPITAL MANAGEMENT INC 1.57% of their portfolio | 924.3k $1.8m | Added +629.0k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 795.0k $1.5m | Reduced -341.7k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 769.5k $1.5m | Reduced -449.3k |
| ISTHMUS PARTNERS, LLC 0.16% of their portfolio | 689.2k $1.3m | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 643.7k $1.2m | Added +319.3k |
| Parkman Healthcare Partners LLC 0.13% of their portfolio | 602.2k $1.2m | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 592.4k $1.1m | Reduced -238.9k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 444.1k $857.1k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 431.6k $833.1k | Added +22.2k |
| Nuveen, LLC 0.00% of their portfolio | 427.7k $825.4k | Unchanged |
| AWM Investment Company, Inc. 0.07% of their portfolio | 400.0k $772.0k | New |
| Diametric Capital, LP 0.28% of their portfolio | 395.4k $763.1k | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 391.4k $755.5k | Added +254.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 368.7k $711.6k | Added +251.2k |
| DNB Asset Management AS 0.00% of their portfolio | 361.1k $697.0k | Added +79.4k |
| OPPENHEIMER & CO INC 0.01% of their portfolio | 331.7k $640.2k | Reduced -14.8k |
| Invesco Ltd. 0.00% of their portfolio | 327.3k $631.8k | Added +102.8k |
| GSA CAPITAL PARTNERS LLP 0.05% of their portfolio | 314.1k $606.0k | Reduced -93.6k |
| OP Asset Management Ltd 0.01% of their portfolio | 298.4k $575.9k | Added +174.6k |
| BARCLAYS PLC 0.00% of their portfolio | 275.0k $530.8k | Reduced -97.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 238.9k $461.1k | Added +1.5k |
| LPL Financial LLC 0.00% of their portfolio | 228.4k $440.9k | Added +100.9k |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 214.5k $414.0k | Added +59.3k |
| SBI Securities Co., Ltd. 0.01% of their portfolio | 189.3k $365.3k | Added +15.0k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 184.5k $356.1k | Reduced -742 |
| Verition Fund Management LLC 0.00% of their portfolio | 172.4k $332.7k | Unchanged |
| Green Alpha Advisors, LLC 0.31% of their portfolio | 164.9k $318.2k | Reduced -10.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 163.4k $315.4k | Added +71.4k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 157.0k $303.0k | Added +5.7k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.02% of their portfolio | 155.8k $300.8k | Added +59.6k |
| Palumbo Wealth Management LLC 0.09% of their portfolio | 146.1k $281.9k | Added +59.2k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 144.1k $278.1k | Reduced -9.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 135.2k $261.0k | Reduced -803.4k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 135.0k $260.6k | New |
| IMC-Chicago, LLC 0.00% of their portfolio | 134.9k $260.4k | New |
| EntryPoint Capital, LLC 0.10% of their portfolio | 133.4k $257.5k | Added +6.4k |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 128.5k $248.0k | Added +10.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 125.9k $242.9k | Added +18.9k |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.02% of their portfolio | 124.9k $241.1k | Unchanged |
| Squarepoint Ops LLC 0.00% of their portfolio | 119.2k $230.2k | New |
| OneAscent Financial Services LLC 0.01% of their portfolio | 109.8k $212.0k | Added +56.4k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 109.4k $211.1k | New |
| Dynamic Advisor Solutions LLC 0.01% of their portfolio | 104.0k $200.8k | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 102.5k $197.7k | Added +25.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 101.9k $197.0k | Reduced -39.5k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 98.0k $189.2k | Reduced -21.5k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 95.1k $183.0k | Added +44.5k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 93.4k $172.6k | Added +7.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 86.3k $166.6k | Unchanged |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 80.8k $156.0k | Reduced -16.3k |
| Procyon Advisors, LLC 0.01% of their portfolio | 77.4k $149.3k | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 65.3k $126.0k | Reduced -5.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 60.8k $117.3k | Unchanged |
| Voleon Capital Management LP 0.00% of their portfolio | 59.1k $114.1k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 57.1k $110.2k | Added +11.6k |
| Seneca Financial Advisors LLC 0.03% of their portfolio | 53.5k $103.3k | Unchanged |
| KESTRA PRIVATE WEALTH SERVICES, LLC 0.00% of their portfolio | 50.0k $96.5k | Added +24.2k |
| ARDSLEY ADVISORY PARTNERS LP 0.01% of their portfolio | 50.0k $96.5k | New |
| Golden State Wealth Management, LLC 0.01% of their portfolio | 48.0k $92.6k | New |
| Rinkey Investments 0.02% of their portfolio | 44.1k $85.1k | Added +2.6k |
| Legal & General Group Plc 0.00% of their portfolio | 43.3k $83.6k | Reduced -163.7k |
| Geneos Wealth Management Inc. 0.00% of their portfolio | 40.7k $78.5k | Unchanged |
| FMR LLC 0.00% of their portfolio | 39.9k $77.0k | Reduced -1.7k |
| SG Americas Securities, LLC 0.00% of their portfolio | 39.8k $77.0k | Added +12.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 39.0k $75.3k | Added +22.8k |
| AXQ CAPITAL, LP 0.03% of their portfolio | 38.5k $74.3k | New |
| 180 WEALTH ADVISORS, LLC 0.01% of their portfolio | 36.6k $70.6k | Reduced -320 |
| Csenge Advisory Group 0.00% of their portfolio | 36.1k $69.7k | Unchanged |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 35.6k $68.7k | Reduced -18.3k |
| LEVIN CAPITAL STRATEGIES, L.P. 0.01% of their portfolio | 35.0k $67.5k | Reduced -35.0k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 34.6k $66.8k | Added +16.8k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 33.7k $84.2k | Added +1.7k |
| Opal Wealth Advisors, LLC 0.02% of their portfolio | 33.3k $64.3k | New |
| ProShare Advisors LLC 0.00% of their portfolio | 32.8k $63.4k | Reduced -6.5k |
| STOREBRAND ASSET MANAGEMENT AS 0.00% of their portfolio | 32.3k $62.3k | Reduced -3.0k |
| LAZARI CAPITAL MANAGEMENT, INC. 0.02% of their portfolio | 31.7k $61.2k | Added +3.1k |
| CITIGROUP INC 0.00% of their portfolio | 30.6k $59.0k | Reduced -74.6k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 28.4k $54.8k | Added +1.6k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 27.6k $53.2k | New |
| Summit Trail Advisors, LLC 0.00% of their portfolio | 26.8k $51.7k | Unchanged |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 25.4k $49.0k | Added +5.2k |
| Spectrum Planning & Advisory Services Inc. 0.03% of their portfolio | 23.7k $45.7k | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 22.1k $42.6k | Reduced -749.0k |